import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)

/**
 * Write a description of class mainWorld here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class MainWorldClass extends World/*Or whatever you want to call it*/  
{  
    private int[][] world;  

    public MainWorldClass(int[][] array)  
    {  
        super(800, 400, 1);
        world = array;
    }  

    public void setItemsFromArray(int[][] world)    
    {  
        int gap = 30; // see note below  
        for (int i = 0; i < world.length; i++) for (int j = 0; j < world[i].length; j++)    
            {  
                Actor actor = null; // to hold any actor created  
                switch (world[i][j]) {  
                    case 0: break; // no actor here  
                    case 1: actor = new Player(); break;  
                    case 2: actor = new Enemy(); break;  
                    case 3: actor = new Wall(); break;  
                    case 4: actor = new  Item(); break;  
                }  
                if (actor != null) addObject(actor, i*gap, j*gap);  
        }  
    }  
}  

import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)

/**
 * Write a description of class game here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class game extends MainWorldClass
{
    int[][] myTwoDArray = {  
                {0, 0, 0, 0, 0},  
                {2, 0, 1, 0, 2},  
                {0, 0, 0, 0, 0}  
            };  

        //gets height of a 2D array (it equals 3)  
        int height = myTwoDArray.length;  

        //gets width of a 2D array (it equals 5)  
        int width = myTwoDArray[0].length;  
    /**
     * Constructor for objects of class game.
     * 
     */
    public game()
    {    
        super(myTwoDArray);
        
        
        
    }
}